Aug 3rd, 2011, 15:19 | 只看该作者 #21 | |
Senior Gear
注册日期: Jan 2008
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mini 在静止起步占劣势, 因为底盘是德国车, 比日本车的材料重, 而且隔音, 内饰, 和座位更重。 bmw 舍不得放弃自己的形象, 把自己的安全和豪华标准放了进去, 否则车身能再轻 200-300 lbs。 但是 mini 在中段加速占优势, 因为引擎的低端和中段扭力很平稳, 一直坚持到红线。 所以也能帮助操控和过弯, 靠油门掌握线路。 不管怎样, 在这些比较接近的动力情况下, mini 的操控好多了, 路感, 方向盘, 平衡感, 很轻松的能开得更快,更得心应手。 这是 honda 民用车做不到的东西, 也是 bmw 出名的地方。 |
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Never argue with an idiot. He will consistently drag you down to his level and beat you with experience.
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Aug 4th, 2011, 10:11 | 只看该作者 #31 | |
Senior Gear
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首先,满街跑的是一般的 Honda Civic,加速就不用谈了。 其次,就算是稀有的 Honda Civic SI, 0-60mph 加速也就 6.7 秒左右, 何况日本车的数字总是虚报。而满街跑的 328i 0-60mph 加速官方报 6.3 秒,实际上是 5.9 秒左右。 BMW 一贯的作风就是把数字报低些,连 Mini 也是,测试起步比官方报的少 0.5 秒。普普通通的 328i 已经比 Honda Civic SI 静止起步快了,而且平时开车起步的数据并不重要,中高端的加速才是比较有意义的,这点上 BMW 的直6引擎能保证平滑线性的扭力,开起来巨爽,不是数字能表现出来的。 再次,只要动力不肉了,我个人认为底盘,换向,悬挂,还有制动才是最重要的东西。同样的动力,同样能够迅速加速到 220km/h,一辆随时感到要失控的 Camaro,和一辆人车一体得心应手的 335i,哪个开起来更舒服,更安全? 最后,在保证足够的安全性能,隔音质量,内饰下,BMW 3 系不得不比 Honda Civic 重,但是不比其它同类型的 compact sedan 重多少。 在同等重量的车里,BMW 3 系用的是后驱,对操控有很大的帮助,推着前进,换线,转向和过弯都会灵活很多,这点是其它车很难追上的。除了 Mercedes 以外,做后驱 sedan 的只有 Lexus, Infinity。该拿 BMW 3 系跟这几个牌子的后驱 sedan 比好些,而不是轻量前驱小车 Honda Civic SI。Honda Civic SI 该比的是 Mini Cooper S, VW GTI 等等。 此帖于 Aug 4th, 2011 10:31 被 蓝魔 编辑。 |
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Aug 4th, 2011, 13:36 | 只看该作者 #34 | |
八毛儿-专业网刷
注册日期: Oct 2004
住址: Toronto
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Exhaust Systems: AC Schnitzer (E90?,E92) Active Autowerke Exhaust (E90,E92, Catback) Agency Power Exhaust (E92, Catback) Autobahn Exotics Exhaust (E90, E92, Downpipe-back) Bastuck Exhaust (Axleback) Borla Single Muffler Exhaust (E90,E92, Catback) Britalman Exhaust (E92) CP-E Exhaust (Catback) Dinan Exhaust System (E90, E92, Axleback) Dixis Exhaust System Eisenmann Sport/Race Exhaust (Axleback) Meisterschaft GT Exhaust (E90,E92, Catback) Harman Motive/Vishnu Exhaust (E90?,E92, Catback) Hartge Exhaust (E92) Milltek Exhaust (E92) Mr 5's Custom Magnaflow Exhaust RD Sport Exhaust (E90,E92) RennArt Exhaust (E92, DP-Back) Clip Super Sprint Exhaust (E90,E92) Ultimate Racing Exhaust (E90,E92, Catback) UUC Corsa RSC335 Exhaust (Axleback) Zoomers Exhaust (E90,E92? Catback) Sound clips can be found at: Aftermarket Exhaust media thread ECU Tuning/Piggyback: Reviews of All Tunes Active Autowerke Xede (Chiptorque Processor) Active Autowerke "Active Processor" (AEM F/IC) CP-E StandBack Dinan Reflash (Stage 1, 2,3) EurotekGmbH Reflash (Stage 1, Stage 2: Custom flash, Stage 3 TBA) GIAC Helix Attache JuiceBox Stage 1, Stage 2, R Switch, H Pills, JBX, Stage 3 RD Sport Blackbox (Chiptorque piggyback) Shark Injector/Edit (Not Released) Link 1 Link 2 Split Second Turbo Tuner (aka SSTT) - FAQ Post Vishnu Procede Dark Vishnu Procede V3.0 Downpipes/Straightpipes: ar design True 3" Downpipes (Cat-less, Ceramic Coating Available) Riss Racing Downpipes (Cat-less, Catted Prototype, Ceramic Coating Available) SuperSprint Downpipes (Cat-less) Titek Innovations Downpipes (Cat-less) Ultimate Racing Downpipes (Cat-less,Catted) Front Mount Intercooler Upgrades: Active Autowerke FMIC Code3 Performance FMIC (Spearco Core) CP-E FMIC Dixis FMIC Dinan Intercooler Helix FMIC Race Precision Inc. (RPI) FMIC Supremepower (SPP) FMIC STETT FMIC Blow-Off Valves: Active Autowerke BOV Kit CP-E BOV Kit Titek Innovations BOV Kit Ultimate Racing BOV Kits - HKS, Tial (E90,E92) Coilovers/Swaybars/Springs: Bilstein PSS9 Coilover System Bilstein B16 Electronic Ride Control Coilovers Cross Competition Coilover System Eibach Pro-Kit Springs Gambit Motorsports DFtrac Adjustable Rear Swaybar H&R Cup Kits H&R Street Perfomance Coilover System H&R Sway Bars H&R Sport/Race Springs Hotchkis Sway Bar (F/R Sway Bars, F/R Adjustable End Links Koni Yellow Shocks Koni FSD Shocks KW Variant 1,2,3 Coilover System Tein SS-P Coilover System TEIN S-Tech Springs UUC SwayBarbarian Sway Bar Intake Systems/Filters: aFe Intake System (very similar to dual cone, with better pipings and a heatshield) BavDom Gruppe-M Replica Intake BMC Airfilter Burger Motorsports Intake Filter Gruppe-M Intake Helene Performance Filter ITG Tri-foam Filter K&N Filter Logic Motorsports HVI Intake MSDS Stage1/2 Intake Stett CAI / Stett CAI Ultimate Racing CAI (E90,E92) VIP Intake System Limited Slip Differentials (LSD): Drexler LSD Hartge LSD Koala Motorsports LSD Metric Mechanic LSD Quaife ATB LSD Turner Motorsports LSD WAVETRAC LSD Short Shifter Kit Mods: BMW OEM SSK for 335i BMW Part number: 25110430357 UUC Evo3 SSK for 335i Playing with Knobs (The Ultimate 6MT Knob Thread) Etc Performance Mods: ar design Bomb-proof Gaskets for DP's Dinan Oil Cooler Upgrade V K Motorwerks Oil Cooler Upgrade Forge Motorsports Diverter Valve |
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Aug 4th, 2011, 15:24 | 只看该作者 #38 |
Senior Gear
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whp = wheel horse power hp = crank horse power usually, for FWD: whp = hp x 0.85 for RWD: whp = hp x 0.8 for AWD: whp = hp x 0.75 To handle high horsepower you need a good chassis and suspension system, otherwise you are putting a rocket on a shopping cart. That's exactly what many American muscle cars are - they are very fast on straight lines, but nightmares on handling. |
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Aug 4th, 2011, 15:46 | 只看该作者 #39 |
Senior Gear
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顺便补充一下, 车体能感受到的是扭力, 不是马力。 引擎输出扭力太大,会发生拧断 crankshaft 的事情. 引擎输出扭力后, 主要就看离合片的承受扭力的能力。 扭力通过齿轮输出到轮子上, 齿轮比太大会让轮子克服摩擦打滑,所以大马力的车在低速时不会感到强很多,主要是由于引擎扭力输出大,可以采用小点的齿轮比,推迟换档。别的车到了尽头, 不得不降低扭力延长速度范围时, 大马力的车可以呆在同一个档位,继续同一个扭力加速。 我想说的就是 300hp, 400hp, 500hp, 600hp,主要是在高速加速更猛, 需要更强的传动或者离合片, 需要车身悬挂硬些, 吸收高速下的路面不平, 刹车碟大些能让车刹车的也快些,车体近可能抗风阻。 |
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